Francis j



(No Model.)

F. J. MULLER.

LANTERN.

Patented Nov. 22,1881.

9 'LM) WAX o1.

H. PETERS, Flln'o-lllhogmplw UNITED STATES PATENT Grates.

FRANCIS J. MULLER, OF NEW? YORK, ASSIGNOR OF ONE-THIRD TO MARCUS DAVID, OF ROCHESTER, N. Y.

LANTERN.

SPECIFICATION forming part of Letters Patent No. 249,785, dated November 22, 1881.

Application filed August 31, 1881.

To all whom it may concern:

Be it known that I, FRANCIS J. MULLER, of New York, in the countyofNew York and State of New York, have invented certain new and useful Improvements in Lanterns; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to lanterns and lamps for use on railroads, ships, or other places, for signaling or other purposes; and it consists in certain novel combination of parts hereinafter fully set forth.

This invention is illustrated in the accompanying drawings, in which Figure 1 represents a vertical central section. 'Fig. 2 is a side elevation. Fig. 3 is a plan or top view of the burner. Fig. etis a like view of the wiok-thimble.

Similar letters of reference indicate corresponding parts.

The letterA designates an oil-reservoir, forming a basefor the lantern or lamp, and having a central collar, B, in the top thereof for the reception of the burner O. Surrounding the collar B on the top of the reservoir A is aring or short cylinder, forming an air chamber, D,

around the burner, this ring having fitted thereon the burner-cone E.

To the side of the air-chamber Dare coir nected the lower ends of two flues, F, whose 5 upper ends are connected to a cap, G, surmounting the globe H of the lantern or lamp,

this cap being supported by the flues, and being, moreover, provided with a guard-flange, 5,

to protect the globe in case thelantern is upset,

40 and from rain. The lower end of the globe H is fitted into a for-ominous ring, I, surrounding the burner-cone E and resting loosely on the top of the reservoir, while its upper end isfitted into a similar ring, J, carried by the cap G, by

5 the arms K. This upper foraminous ring, J,

is so arranged that its upper edge is approximately on a line with the lower edge of the cap G, while the lower ring, I, is provided with notches, allowing it to straddle the lower hori- 5o zontal limb of the fines F, and the rod 6 of the (N0 model.)

wickwheel, the burner cone E also having notches for a similar purpose. One of the flues F has a depression, 12, for the working of the head on the wick-wheel rod 6.

In the side of the lower foraminous ring, I, is a hole, 7, large enough to admit a match, and over this hole is fitted a cover, N, which in this example is pivoted to swing over or away from the hole. To a suitable part of the flues F are hung the opposite ends of a bail, Q, for carrying the lantern. I

The lines F are square in cross-section, and both are divided, approximately on a line with the top edge of the globe H, into an upper and lower section, which are connected together by fastenings, consisting, in this example, of a hook, 8, pivoted to one section, and engaging a pin, 9, on the other section, one section of the fiues being, moreover, contracted at its upper free end for its insertion into the other section, as clearly shown in Fig. 1.

On the upper end or mouth of the wick-tube 10 of the burner is a flange, O, which is provided with two slots, 11, (see Fig. 3,) one on each side of the wick-tube, each forming a segment ofan ellipse. This flange O is, moreover, curved downward on those portions thereof adjacent to and exterior of the slots 11.

Into the collar B of the oil-reservoir A is fitted and placed loosely aforaminous thimble, I which projects down into the reservoir and receives in it the wick of the burner G.

When the parts of the lantern have been properly put together and the article is put to use, a constant circulation of air is kept up between the cap G and the airchamber D, the heated air passing from the globe into the cap, where it is tempered by the influx of cold air through the opening between the upper foranlinous ring, J, and the cap, causing the least 0 possible heat to the exposed surface of the cap and the top part of the globe, and maintaining a comparatively low temperature of the latter. Said influx of cold air is regulated by the foramiuous ring J, which divides the particles of 5 air, and thus prevents a sudden rushthereof to disturb the flame, the same result being effected by the lower foraminous ring, I, which divides the air admitted to the inside of the globe H, and admits itonly in such quantities I00 and at such temperature as will least disturb the flame and light and give the least heat. The lower foraminous ring, being loose, gives play to the globe B, so that the latter is least liable to be broken by a sudden jerk or fall of the lantern. The division of the fines F allows the cap G to be taken off from the globe H, and thus also allows the removal of the globe for access to the burner and its concomitant-s. Such separation of the parts, however, is necessary only for the purpose of cleaning, inasmuch as the burner can be readily'lighted or extinguished through the hole 7 of the lower foraminous ring, I, this hole being closed by its coverN under normal conditions. The air rising in the air-chamber D passes through the slots 11 of the wick-tube flange O, and is thus divided and presented to the flame, on oppo site sides thereof, in sheet form, while the flange at the same time counteracts a sudden influx of air that may be caused by wind or storm, thereby equalizing the draft and steadying the flame, and also causes the least metal surface to be presented to the flame.

The function of the thimble P is to prevent the oil in the reservoir Afrom splashingagaiust the wick by a sudden movement of the lantern, and thus to leave the steadiness of the flame unaffected thereby, it being well known that such splashing has a tendency to cause flickerin g by creating volatile gases.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the foraminous rings I J, adapted to reeeix e the upper and lower ends of the globe, with the air-chamber D, surrounding the burner, the cap G, surrounding the globe and carrying one of said rings, and the sectional fines F, substantially as and for the purpose described.

2. The combination, with the air-chamber D, of the burner, having its wick-tube provided with the slotted flange 0, having depressed sides at the upper end, substantially as and for the purpose described.

In testimony that I claim the foregoingI have hereunto set my hand this 30th day of August, 1881.

FRANCIS J'. MULLER.

Witnesses:

FRANCIS CLARE BOWEN, EDGAR GARRETSON. 

